A blade guard is fitted to protect the operator.为保证操作人员的人身安全安装了桨叶保护罩。The RE - aluminizing technique and coating structure of gas turbine blade made of alloy M 38 G are studied.研究了涡轮叶片材料M38G合金渗稀土 - 铝涂层的工艺过程和组织结构.The matad...
The academic year commences at the beginning of October...学年于10月初开始。The academic year commences at the beginning of October.学年于10月初开始。These substances are slowly depleted as the embryo commences to grow.随着胚开始生长,这些物质也慢慢用尽...
因为这时流动可成为音速流动,所以这些小孔本身有一种节制作用或稳定化作用.The holes themselves have a restricting or stabilizing effect because flow may become sonic.本书的主要内容是介绍聚合物稳定化的基本方法.The primary purpose of this book is to present a fundamental approach ...
Bluetongue occurs in most species of ruminants , both domestic and wild.蓝舌病发生于大多数家生的和野生的反刍动物.The pathogenesis of bluetongue is inadequately understood.人们对蓝舌病的发病机制还不完全了解.The bluetongue virus replicates in the insect.蓝舌病病毒...